
.daohanglan{
    float:left;
}


#nav {
    text-align: center;
    width: 170px;
    height: 40px;
    margin: 0 auto;
    padding: 5px 20px;
    
}
.gong{
    font-size: 20px;
    text-align: center;
}
hh{
    color:blue;
    size:10px;
}
.yanfa{
    text-align: center;
}

.guanyu{
    background-color:#2B96CC;
    text-align: center;
}
.di{
    background:whitesmoke;
}
